This precision stainless-steel adapter lets you join any M11×1–equipped regulator or device to a W21.8 valve quickly and securely. Designed for demanding applications, it delivers leak-proof performance without extra seals. • Thread connections: M11×1 male → W21.8 female • Material: Stainless steel, highly corrosion-resistant • Pressure rating: Up to 200 bar • Seal: Integrated nylon gasket – no O-ring needed • Weight: 97 g • Installation: Hand-tighten in seconds, no tools required • Dimensions: Compact profile fits tight spacesIdeal for professional and home installations where reliability and ease of use are essential.
We want you to be happy with your purchase and we apologize if it is not. For whatever reason that you are not satisfied, we would be most happy to provide exchanges and returns for all items purchased from us if the following conditions are met.
Rules
All exchanges and returns would need to be raised within 10 days of the invoice date for India, and 20 days for overseas orders. For local deliveries, there is an option to exchange at any of our boutiques within India through our online portal at https://seamstar.co.uk. All requests for returns however, would need to be strictly made online at https://seamstar.co.uk for both local and overseas deliveries.
Interpretation and Definitions
All exchanges and returns would need to be raised within 10 days of the invoice date for India, and 20 days for overseas orders. For local deliveries, there is an option to exchange at any of our boutiques within India through our online portal at https://seamstar.co.uk. All requests for returns however, would need to be strictly made online at https://seamstar.co.uk for both local and overseas deliveries.